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廠商性質:經銷商
所在地:上海市
更(geng)新時(shi)間:2024-06-11
產品簡介:
品牌 | Siemens/西門子 | 產地 | 進口 |
---|---|---|---|
加工定制 | 是 |
西門子工業電腦開機白屏PC547C-硬件修專家;
而工業電(dian)腦開機(ji)白屏故(gu)障一般(ban)都是LCD工控液(ye)晶屏自身的故(gu)障。
一:故障原因 :
LCD工控液(ye)(ye)晶(jing)屏(ping)(ping)白(bai)屏(ping)(ping)故(gu)障可(ke)(ke)能是(shi)(shi)由三方(fang)面(mian)造成:分(fen)別(bie)是(shi)(shi)液(ye)(ye)晶(jing)面(mian)板驅(qu)動(dong)電(dian)路(lu)問題(ti)(ti)、液(ye)(ye)晶(jing)面(mian)板供電(dian)電(dian)路(lu)問題(ti)(ti)、屏(ping)(ping)線接觸不良(liang)、主板控制電(dian)路(lu)問題(ti)(ti)等。工控液(ye)(ye)晶(jing)屏(ping)(ping)能夠正常開機,說明背光(guang)燈及(ji)高壓產生電(dian)路(lu)工作(zuo)正常,說明是(shi)(shi)液(ye)(ye)晶(jing)面(mian)板沒有得(de)到(dao)驅(qu)動(dong)信(xin)號;如果(guo)關(guan)機后畫面(mian)消失,接著發生白(bai)屏(ping)(ping),那可(ke)(ke)能是(shi)(shi)電(dian)源(yuan)板問題(ti)(ti)。
故障處理方法:
1、拆開外殼,然后檢查屏線(xian)接(jie)(jie)口是否松動或未連(lian)接(jie)(jie)好(hao)。
2、接著電(dian)(dian)(dian)源開(kai)關,然后用(yong)萬用(yong)表測量(liang)屏線接口的(de)(de)供(gong)電(dian)(dian)(dian)電(dian)(dian)(dian)壓是(shi)否(fou)正常(chang)。如(ru)果(guo)供(gong)電(dian)(dian)(dian)電(dian)(dian)(dian)壓正常(chang),檢查(cha)液晶面板驅動(dong)電(dian)(dian)(dian)路中的(de)(de)時序信號(hao)、驅動(dong)信號(hao)是(shi)否(fou)正常(chang);如(ru)果(guo)不(bu)正常(chang),接著檢查(cha)屏線輸出端附近的(de)(de)保險(xian)電(dian)(dian)(dian)阻或保險(xian)電(dian)(dian)(dian)感是(shi)否(fou)開(kai)路或損(sun)壞(huai)。如(ru)果(guo)損(sun)壞(huai),則更換損(sun)壞(huai)的(de)(de)元器件(jian)即可(ke)。
3、如(ru)果(guo)屏線輸出(chu)端附近的保險電(dian)(dian)阻或(huo)保險電(dian)(dian)感正(zheng)(zheng)常(chang),接著(zhu)檢查為LCD工(gong)控液晶屏供電(dian)(dian)的DC-DC 電(dian)(dian)壓(ya)轉換(huan)電(dian)(dian)路的輸出(chu)端電(dian)(dian)壓(ya)是否正(zheng)(zheng)常(chang)。如(ru)果(guo)輸出(chu)電(dian)(dian)壓(ya)不正(zheng)(zheng)常(chang),檢查此電(dian)(dian)源電(dian)(dian)路中的保險電(dian)(dian)阻、PWM 控制器(qi)、開關管、電(dian)(dian)感線圈、濾波電(dian)(dian)容(rong)等元(yuan)器(qi)件(jian),然后(hou)更換(huan)損壞的元(yuan)器(qi)件(jian)即可。
西門子工業電腦開機白屏PC547C-硬件修專家;
西門子工業電腦PC547C開機白屏(ping)維(wei)修(xiu),快速修(xiu)復其(qi)他故障包(bao)括:黑屏,白(bai)屏,花屏,死(si)(si)機,開不(bu)了機,進(jin)不(bu)去系統(tong),啟動卡死(si)(si)不(bu)動進(jin)不(bu)了主界(jie)面,顯(xian)
示(shi)(shi)豎條通訊連不上,無背(bei)光,系統不斷重(zhong)啟,面板顯示(shi)(shi)驅動(dong)未就緒,報編碼器故障,程序走一半,電(dian)源亮紅燈,西門子伺服(fu)電(dian)機抖動(dong),不能(neng)帶負(fu)載,系統報警,伺服(fu)故障,控制(zhi)模塊亮紅燈,機床不能(neng)正常運(yun)行維修。